Piston-ring tool



J. O. ROBERTS.

PISTON RING TOOL.

APPLICATION FILED JUNE 4, 1920.

Patented July 19, 1921.

'JZ/ZZUS UNITED STATES PATENT OFFICE.

JULIUS O. ROBERTS, OF ABILENE, KANSAS.

PISTON-RING TOOL.

Application filed June 4,

To all whom it may concern Be it known that I, JULIUS O. ROBERTS, a citizen of the United States, residing at Abilene, in the county of Dickinson and State of Kansas, have invented a new and useful Piston-Ring Tool, of which the following is a specification.

The present invention relates to a novel form of tool employed in engine repair work, and it is the primary object of the invention to provide a device of this character for facilitating the positioning of piston rings on the pistons associated therewith.

A further object of the invention is to provide means capable of adjustment, to adapt the device for use, with various sized pistons.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing Figure 1 illustrates a plan view of a piston showing the invention as applied.

Fig. 2 illustrates a side elevational view of a piston disclosing the invention in section.

Fig. 3 illustrates a side elevational view of a piston showing a modified form of the invention, one of the arms thereof being shown in section.

Referring to the drawing in detail, the device is shown as including opposed arms 5 and 6 which are formed of relatively light spring metal, and have their ends extending at right angles to the body portions thereof, as at 7.

These arms 5 and 6 are pivotally connected intermediate their ends, as by means of the pivot pin 8, and by means of which the arms are permitted to move into parallel relation with each other, so that the same may be folded into a compact article for storing.

In the form of the invention as illustrated by Fig. 3 of the drawing, the arms 5 and 6 are each provided with integral ears 7 and 8 disposed adjacent to the ends thereof,

Specification of Letters Patent.

Patented July 19, 1921.

1920. Serial No. 386,560.

which ears are bent around the adjustable arms 9, carried by the arms 5 and 6, and as shown these arms 9, also have ears bent around the arms 5 and 6 in a manner to permit of adjustment of the arms 9' longitudlnally of the arms 5 and 6, thereby adapting the device for use with pistons of various diameters.

In the use of the tool, the device is placed over a piston, the right angled ends thereof contacting with the periphery of the piston, and overlying the outer piston ring groove. It will thus be seen that a piston ring may now be positioned over the right angled ends 7 of the arms and forced downwardly over the piston with the result that the ring is now slid over the outer ring groove, and positioned in the second ring groove, or seat.

Having thus described the invention, what is claimed as new is I. In a tool for applying piston rings. apalr of pivotally connected arms, each of the arms having a right angled. extremity adapted to overlie a portion of the periphery of a piston, and means for adjusting the right angled ends with relation to the arms.

2. In a tool for applying piston rings, a pair of arms, means disposed intermediate the ends of the arms for pivotally connecting the arms, ears provided at the ends of the arms, arms carried at the ends of the first mentioned arms, the latter arms having ears formed thereon, said ears adapted to overlie a portion of the adjacent arm to permit of adjustment of the arms.

3. In a tool for applying piston rings, a pair of arms, said arms being pivotally connected at points intermediate their ends, each of said arms having right angled ends adapted to overlie portions of a piston.

4. In a tool for applying piston rings, a-

pair of arms pivotally connected at points intermediate-their ends, said arms adapted to be moved into parallel relation with each other, and said arms having right angled piston engaging portions.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

JULIUS O. ROBERTS.

lVitnesses L. F. WILLIAMS, M. H. MALOTT. 

